TFTN Series

NTI is pleased to offer the next generation of our flagship boiler line. The new TFTN offers onboard WiFi and a new touchscreen that brings more functionality than previously available. Our new control is designed to be easy and intuitive, yet powerful enough to offer all the features and functionality required by today’s installing contractor. Built on the same platform as our market-leading TFT line, this next generation brings the same high-level of quality you’ve come to expect, with the added benefits of our redesigned control. Our next generation TFTN is currently available in sizes 85, 110, 150 and 199 MBH. Larger sizes from 285 to 850 MBH will be available in spring 2023.

Main Features

EZ Setup Wizard – programming your boiler has never been easier

Remote Monitoring and Diagnostics – remote access for programming and troubleshooting

Easy-to-read full color graphics

Top and Bottom plumbing connections for easy installation

Built-in Low Water Cutoff, saving time and money

120v convenience outlet

Built-in zone control – up to 3 Heating zones plus Domestic Hot Water (Expandable to six heating zones using the optional N-Link Zone Expansion Module - part # 87633-1)


Larger sizes from 285 to 850 MBH will be available in spring 2023.

Wall Mount

Input Heating MBH 8.5-8511-11015-15019.9-19928.5-28539.9-34039.9-399
Heating Capacity (MBH)79101138184263324380
Net AHRI Rating (MBH)6988120160229282330
Weight (lbs.) With Water107107122140180250250
Water Content (gallons)1.41.422.
Water Connections (heating)1 1/4" NPT-M1 1/2" NPT-M1 1/2" NPT-M
Gas Connection3/4" NPT-M
2" Inlet & Exhaust Distance100' MaxN/AN/AN/A
3" Inlet & Exhaust Distance150' MaxN/AN/A
4" Inlet & Exhaust DistanceN/AN/AN/AN/AN/A150' Max150' Max

Larger sizes from 285 to 850 MBH will be available in spring 2023.

Floor Mount

Input Heating MBH 50-50060-60072.5-72585-850
Heating Capacity (MBH)489585705825
Net AHRI Rating (MBH)425509613717
Weight (lbs.) With Water575575685690
Water Content (gallons)12.512.517.516.5
Water Connections (heating)2" NPT-M2" NPT-M2.5" NPT-M2.5" NPT-M
Gas Connection1" NPT-M1" NPT-M1-1/4" NPT-M1-1/4" NPT-M
4" Inlet & Exhaust Distance150' Max150' MaxN/AN/A
6" Inlet & Exhaust DistanceN/AN/A150' Max150' Max

Manuals & Guides

TFTN Brochure New


TFTN085-199 Parts List


TFTN085 110 Submittal


TFTN150 199 Submittal


LP Conversion TFTN085-199


TFTN085-399 Installation and Operation Manual


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